From: Ville Syrjälä ville.syrjala@linux.intel.com
commit 13bd259b64bb58ae130923ada42ebc19bf3f2fa2 upstream.
adl-s needs the combo PLL DCO fraction w/a as well. Gets us slightly more accurate clock out of the PLL.
Cc: stable@vger.kernel.org Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20220613201439.23341-1-ville.s... Reviewed-by: Matt Roper matthew.d.roper@intel.com (cherry picked from commit d36bdd77b9e6aa7f5cb7b0f11ebbab8e5febf10b) Signed-off-by: Jani Nikula jani.nikula@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c @@ -2434,7 +2434,7 @@ static void icl_wrpll_params_populate(st }
/* - * Display WA #22010492432: ehl, tgl, adl-p + * Display WA #22010492432: ehl, tgl, adl-s, adl-p * Program half of the nominal DCO divider fraction value. */ static bool @@ -2442,7 +2442,7 @@ ehl_combo_pll_div_frac_wa_needed(struct { return ((IS_PLATFORM(i915, INTEL_ELKHARTLAKE) && IS_JSL_EHL_DISPLAY_STEP(i915, STEP_B0, STEP_FOREVER)) || - IS_TIGERLAKE(i915) || IS_ALDERLAKE_P(i915)) && + IS_TIGERLAKE(i915) || IS_ALDERLAKE_S(i915) || IS_ALDERLAKE_P(i915)) && i915->dpll.ref_clks.nssc == 38400; }